Home / 28,573.65-39,429.85-15,826.63

Finding the Fourth Proportional to 28,573.65, 39,429.85 and 15,826.63

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Solution

The fourth proportional to 28,573.65, 39,429.85 and 15,826.63 is: 21,839.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,573.65 : 39,429.85 = 15,826.63 : x
  2. Step 2: Convert to fraction form
    28,573.65/39,429.85 = 15,826.63/x
  3. Step 3: Cross multiply
    28,573.65x = 39,429.85 × 15,826.63
  4. Step 4: Simplify right side
    28,573.65x = 624,041,646.91
  5. Step 5: Solve for x
    x = 624,041,646.91/28,573.65
  6. Step 6: Final answer
    x = 21,839.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.